WO2016131186A1 - Dispositif et procédé de communication de signaux de référence de liaison montante - Google Patents

Dispositif et procédé de communication de signaux de référence de liaison montante Download PDF

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Publication number
WO2016131186A1
WO2016131186A1 PCT/CN2015/073216 CN2015073216W WO2016131186A1 WO 2016131186 A1 WO2016131186 A1 WO 2016131186A1 CN 2015073216 W CN2015073216 W CN 2015073216W WO 2016131186 A1 WO2016131186 A1 WO 2016131186A1
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Prior art keywords
reference signal
frequency domain
bandwidth
configuration information
hopping
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PCT/CN2015/073216
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English (en)
Chinese (zh)
Inventor
刘建琴
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201810723426.8A priority Critical patent/CN109039560B/zh
Priority to PCT/CN2015/073216 priority patent/WO2016131186A1/fr
Priority to CN201580002497.3A priority patent/CN106105288B/zh
Priority to EP15882326.0A priority patent/EP3249961B1/fr
Publication of WO2016131186A1 publication Critical patent/WO2016131186A1/fr
Priority to US15/679,951 priority patent/US10700844B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/0012—Hopping in multicarrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a communication device and method for an uplink reference signal.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • the base station can obtain the channel quality of the downlink entire system bandwidth by using the channel quality measurement of the uplink SRS through the reciprocity of the uplink and downlink channels.
  • the present invention provides an uplink reference signal communication apparatus and method for improving the efficiency of a full bandwidth channel quality measurement of a system.
  • a first aspect of the present invention provides a user equipment, including:
  • a sending module configured to perform uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • the method further includes:
  • a receiving module configured to send, by the receiving base station, before the sending module performs the uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter.
  • a configuration message where the configuration message includes reference signal hopping interval information of the UE;
  • the configuration manner of the reference signal hopping interval information of the UE is a semi-static configuration of the high-level signaling.
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is as follows The formula is obtained:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • RRC is a frequency domain location parameter given by a higher layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity
  • the F b ' ( n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th node in a tree structure
  • the frequency hopping bandwidth is The frequency domain range of the uplink reference signal in the frequency domain frequency hopping.
  • the F b ' (n SRS ) is obtained by the following formula:
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • the sending module is specifically configured to send a channel quality indicator CQI in each time slot.
  • the symbol and/or precoding matrix indicates that the uplink reference signal is transmitted on the symbol of the PMI.
  • a second aspect of the present invention provides a base station, including:
  • a sending module configured to notify reference signal bandwidth configuration information of the user equipment UE, reference signal hopping interval information of the UE, and frequency domain location parameters to the user equipment;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • a receiving module configured to receive an uplink reference signal sent by the UE.
  • the sending module is configured to send a configuration message to the UE, where the configuration message includes reference signal hopping interval information of the UE,
  • the sending mode of the configuration message is semi-static configuration of high-level signaling.
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is as follows The formula is obtained:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • the RRC is a frequency domain location parameter given by the upper layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity of the frequency hopping
  • b' (n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th level node in a tree structure
  • the frequency bandwidth is a frequency domain range in the frequency domain frequency hopping of the uplink reference signal.
  • the F b ' (n SRS ) is obtained by the following formula:
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • the sending module is specifically configured to send a channel quality indicator CQI in each time slot.
  • the symbol and/or precoding matrix indicates that the uplink reference signal is received on the symbol of the PMI.
  • a third aspect of the present invention provides a user equipment, including:
  • a sending module configured to perform uplink reference signal transmission by the UE according to the reference signal bandwidth configuration information of the UE, the reference signal maximum hopping bandwidth configuration information of the UE, and the frequency domain location parameter;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information table of the UE The maximum frequency hopping bandwidth of the uplink reference signal that the UE can support; the frequency domain location parameter indicates a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE.
  • the method further includes: a receiving module, configured, by the sending module, according to the reference signal bandwidth configuration information of the UE, and a maximum hopping bandwidth of the reference signal of the UE Before the configuration information and the frequency domain location parameter are used for performing the uplink reference signal transmission by the UE, receiving a configuration message sent by the base station, where the configuration message includes configuration information of a maximum frequency hopping bandwidth of the reference signal of the UE;
  • the configuration manner of the maximum hopping bandwidth configuration information of the reference signal of the UE is a semi-static configuration of the high-level signaling.
  • the configuration message further includes: cell-specific reference signal bandwidth configuration information
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE;
  • a processing module configured to determine, according to the cell-specific reference signal bandwidth configuration information, a reference signal maximum frequency hopping bandwidth configuration information of the UE.
  • the sending module is specifically configured to be used in Each slot transmits a symbol of the channel quality indicator CQI and/or a precoding matrix indicates that the uplink reference signal is transmitted on the symbol of the PMI.
  • a fourth aspect of the present invention provides a base station, including:
  • a sending module the reference signal bandwidth configuration information of the UE, the reference signal maximum frequency hopping bandwidth configuration information of the UE, and the frequency domain location parameter are sent to the user equipment UE;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference that the user equipment can support. a maximum frequency hopping bandwidth of the signal; the frequency domain location parameter indicating a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE;
  • a receiving module configured to receive an uplink reference signal sent by the UE.
  • the sending module is specifically configured to send a configuration message to the UE, where the configuration message includes a maximum hopping band of a reference signal of the UE.
  • the configuration information is sent in a semi-static configuration of the high layer signaling.
  • the configuration message further includes: cell reference signal bandwidth configuration information
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • Frequency bandwidth configuration information is a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • the sending module is specifically configured to be used
  • the uplink reference signal is received on a symbol of a channel quality indicator CQI and/or a precoding matrix indicating PMI on each slot.
  • a fifth aspect of the present invention provides a user equipment, including:
  • a transmitter configured to perform uplink reference signal transmission by the UE according to reference signal bandwidth configuration information of the UE, reference signal hopping interval information of the UE, and a frequency domain location parameter;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • the method further includes:
  • a receiver configured to send, by the receiving base station, before the transmitter performs the uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter.
  • a configuration message where the configuration message includes reference signal hopping interval information of the UE;
  • the configuration manner of the reference signal hopping interval information of the UE is a semi-static configuration of the high-level signaling.
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is obtained by using the following formula:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • RRC is a frequency domain location parameter given by a higher layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity
  • the F b ' ( n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th node in a tree structure
  • the frequency hopping bandwidth is The frequency domain range of the uplink reference signal in the frequency domain frequency hopping.
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • the transmitter is specifically configured to send a channel quality indicator CQI in each time slot.
  • the symbol and/or precoding matrix indicates that the uplink reference signal is transmitted on the symbol of the PMI.
  • a sixth aspect of the present invention provides a base station, including:
  • a transmitter configured to notify reference signal bandwidth configuration information of the user equipment UE, reference signal hopping interval information of the UE, and frequency domain location parameters to the user equipment;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • a receiver configured to receive an uplink reference signal sent by the UE.
  • the transmitter is specifically configured to be used Sending a configuration message to the UE, where the configuration message includes reference signal hopping interval information of the UE, and the sending manner of the configuration message is a high-level signaling semi-static configuration.
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is as follows The formula is obtained:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • the RRC is a frequency domain location parameter given by the upper layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity of the frequency hopping
  • b' (n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th level node in a tree structure
  • the frequency bandwidth is a frequency domain range in the frequency domain frequency hopping of the uplink reference signal.
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • the transmitter is specifically configured to send a channel quality indicator CQI in each time slot.
  • the symbol and/or precoding matrix indicates that the uplink reference signal is received on the symbol of the PMI.
  • a seventh aspect of the present invention provides a user equipment, including:
  • a transmitter configured to perform uplink reference signal transmission by the UE according to the reference signal bandwidth configuration information of the UE, the reference signal maximum hopping bandwidth configuration information of the UE, and the frequency domain location parameter;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference signal that the UE can support.
  • the maximum frequency hopping bandwidth; the frequency domain location parameter indicates a frequency domain location of the uplink reference signal after the frequency hopping of the reference signal in the UE.
  • the method further includes: a receiver, configured, by the transmitter, according to the reference signal bandwidth configuration information of the UE, a maximum hopping bandwidth of the reference signal of the UE Before the configuration information and the frequency domain location parameter are used for performing the uplink reference signal transmission by the UE, receiving a configuration message sent by the base station, where the configuration message includes configuration information of a maximum frequency hopping bandwidth of the reference signal of the UE;
  • the configuration manner of the maximum hopping bandwidth configuration information of the reference signal of the UE is a semi-static configuration of the high-level signaling.
  • the configuration message further includes: cell-specific reference signal bandwidth configuration information
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE;
  • a processor configured to determine, according to the cell-specific reference signal bandwidth configuration information, reference signal maximum hopping bandwidth configuration information of the UE.
  • the transmitter is specifically configured to be used in Each slot transmits a symbol of the channel quality indicator CQI and/or a precoding matrix indicates that the uplink reference signal is transmitted on the symbol of the PMI.
  • An eighth aspect of the present invention provides a base station, including:
  • a transmitter configured to notify reference signal bandwidth configuration information of the UE, reference signal maximum frequency hopping bandwidth configuration information of the UE, and frequency domain location parameters to the user equipment UE;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference that the user equipment can support. a maximum frequency hopping bandwidth of the signal; the frequency domain location parameter indicating a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE;
  • a receiver configured to receive an uplink reference signal sent by the UE.
  • the transmitter is configured to send a configuration message to the UE, where the configuration message includes configuration information of a maximum frequency hopping bandwidth of a reference signal of the UE,
  • the sending manner of the configuration message is a semi-static configuration of high-level signaling.
  • the configuration message further includes: cell reference signal bandwidth configuration information
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • Frequency bandwidth configuration information is a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • the transmitter is specifically used to The uplink reference signal is received on a symbol of a channel quality indicator CQI and/or a precoding matrix indicating PMI on each slot.
  • a ninth aspect of the present invention provides a method for transmitting an uplink reference signal, including:
  • the user equipment UE performs uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • the UE performs, according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and a frequency domain location parameter, Before the uplink reference signal transmission, it also includes:
  • the configuration manner of the reference signal hopping interval information of the UE is a semi-static configuration of the high-level signaling.
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is as follows The formula is obtained:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • RRC is a frequency domain location parameter given by a higher layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity
  • the F b ' ( n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th node in a tree structure
  • the frequency hopping bandwidth is The frequency domain range of the uplink reference signal in the frequency domain frequency hopping.
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • the method further includes:
  • the UE transmits the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each slot.
  • a tenth aspect of the present invention provides a method for transmitting an uplink reference signal, including:
  • the base station notifies the reference signal bandwidth configuration information of the user equipment UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter to the user equipment;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • the base station receives an uplink reference signal sent by the UE.
  • the base station notifying the reference signal hopping interval information of the user equipment UE includes:
  • the base station sends a configuration message to the UE, where the configuration message includes the reference signal hopping interval information of the UE, and the sending manner of the configuration message is a high-level signaling semi-static configuration.
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is as follows The formula is obtained:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • the RRC is a frequency domain location parameter given by the upper layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity of the frequency hopping
  • b' (n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th level node in a tree structure
  • the frequency bandwidth is a frequency domain range in the frequency domain frequency hopping of the uplink reference signal.
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • the method further includes:
  • the base station receives the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each slot.
  • An eleventh aspect of the present invention provides a method for transmitting an uplink reference signal, including:
  • the user equipment UE performs uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal maximum hopping bandwidth configuration information of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference signal that the UE can support.
  • the maximum frequency hopping bandwidth; the frequency domain location parameter indicates a frequency domain location of the uplink reference signal after the frequency hopping of the reference signal in the UE.
  • the UE performs, according to the reference signal bandwidth configuration information of the UE, the reference frequency maximum hopping bandwidth configuration information of the UE, and the frequency domain location parameter.
  • the method further includes:
  • the configuration manner of the maximum hopping bandwidth configuration information of the reference signal of the UE is a semi-static configuration of the high-level signaling.
  • the configuration message further includes: cell-specific reference signal bandwidth configuration information
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE;
  • the method further includes:
  • the UE transmits the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each slot.
  • a twelfth aspect of the present invention provides a method for receiving an uplink reference signal, including:
  • the base station notifies the reference signal bandwidth configuration information of the UE, the reference signal maximum frequency hopping bandwidth configuration information of the UE, and the frequency domain location parameter to the user equipment UE;
  • the reference signal bandwidth configuration information of the UE indicates that the UE sends an uplink reference signal.
  • User-specific reference signal bandwidth used; the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates a maximum hopping bandwidth of an uplink reference signal that the user equipment can support; and the frequency domain location parameter indicates that the UE is performing The frequency domain position of the uplink reference signal after the frequency hopping of the reference signal frequency domain;
  • the base station receives an uplink reference signal sent by the UE.
  • the base station notifying the user equipment UE of the reference signal maximum frequency hopping bandwidth configuration information including:
  • the base station sends a configuration message to the UE, where the configuration message includes the maximum hopping bandwidth configuration information of the reference signal of the UE, and the sending mode of the configuration message is a semi-static configuration of the high layer signaling.
  • the configuration message further includes: cell reference signal bandwidth configuration information
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • Frequency bandwidth configuration information is a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • the method further includes:
  • the base station receives the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each slot.
  • the user equipment performs the uplink of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal
  • the reference signal hopping interval information of the UE indicates the frequency domain of the uplink reference signal a frequency domain granularity of a frequency hopping interval of the frequency hopping
  • the frequency domain location parameter indicating a frequency domain location of the uplink reference signal after the frequency hopping of the reference signal in the UE
  • the frequency domain granularity is greater than or equal to The user-specific reference signal bandwidth used by the UE to transmit the reference signal.
  • the reference signal hopping interval information of the UE is added as a parameter when determining that the UE transmits the transmission pattern of the uplink reference signal, when the uplink reference signal performs frequency hopping, it is further sampled, which is reduced. The number of measurements, thereby improving the efficiency of channel quality measurements.
  • FIG. 1 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a general network device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart of a method for communicating an uplink reference signal according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart diagram of another method for communicating an uplink reference signal according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart diagram of another method for communicating an uplink reference signal according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a frequency domain location after frequency hopping patterns and frequency hopping according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart diagram of another method for communicating an uplink reference signal according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic flowchart diagram of another method for communicating an uplink reference signal according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic flowchart diagram of another method for communicating an uplink reference signal according to an embodiment of the present invention.
  • an embodiment of the present invention provides a communication apparatus and method for an uplink reference signal.
  • the embodiment of the invention provides a communication device and method for an uplink reference signal.
  • the core idea is to replace the channel quality on a larger measurement bandwidth by using the channel quality on a smaller measurement bandwidth in a high frequency scenario.
  • the delay spread of the high-frequency channel propagation is much smaller than the delay spread of the low-frequency channel propagation.
  • Table 1 below shows the delay spread of the high-frequency 28 GHz and the low-frequency 2 GHz in the 3D urban micro area (Urban Micro, UMi) scenario. Chart.
  • NLOS Non Line Of Sight
  • ns Low frequency high frequency Delay Spread
  • the high-frequency delay spread is less than the low-frequency delay spread, so the high-frequency coherence bandwidth is greater than the low-frequency coherence bandwidth (the coherence bandwidth and the delay spread are inversely proportional). Therefore, the performance loss caused by replacing the channel quality on the larger measurement bandwidth with the channel quality on the smaller measurement bandwidth at a high frequency will be much smaller than the low frequency.
  • uplink reference signal in the embodiment of the present invention is exemplified by a Sounding Reference Signal (SRS), unless otherwise specified, but the solution of the embodiment of the present invention can also be applied to other The reference signal is not limited here.
  • SRS Sounding Reference Signal
  • each user supports at least four optional user-specific SRS bandwidths for each of the uplink system bandwidth and the cell-specific SRS bandwidth configuration.
  • the optional user-specific SRS bandwidth is represented by reference signal bandwidth configuration information.
  • the values of the four user-specific SRS bandwidths are in accordance with the multiples of four Resource Blocks (RBs) and the requirements of being able to be decomposed into two prime numbers of 2, 3, and 5.
  • the above-mentioned user-specific SRS bandwidth is small (equivalent to narrowband), it can be combined with frequency hopping processing to achieve measurement of wideband channel quality, wherein there are four types of frequency hopping bandwidth.
  • the user equipment may select a corresponding frequency hopping bandwidth according to an indication of a tree structure index of the frequency hopping bandwidth.
  • the frequency hopping of the SRS is configured by the high-level parameter SRS hopping bandwidth, and the parameter b hop takes a value of usually one of ⁇ 0, 1, 2, 3 ⁇ .
  • the hopping bandwidth of the SRS is greater than the user-specific SRS bandwidth, there is frequency hopping.
  • the SRS of a 4-RB is set at An arbitrary SRS bandwidth is anywhere on the 96-RB bandwidth, and its possible starting position is 24, and the frequency domain hopping is equivalent to giving a pattern of traversing a parent node whose bandwidth is the hopping bandwidth.
  • the parent node is a hopping bandwidth corresponding to the first level node.
  • the frequency domain position parameter after frequency hopping is given by n RRC
  • the actual frequency domain position is determined by several parameters such as parameters n b , m SRS, b , N b , that is, these parameters uniquely and jointly determine the user.
  • n b is the actual frequency domain position after frequency hopping
  • m SRS, b is the user-specific SRS bandwidth
  • N b is the number of nodes of the b-th level node in the tree structure.
  • the embodiment of the present invention provides a feasible manner: the user may further perform frequency sampling when performing SRS frequency domain frequency hopping, that is, setting a frequency domain interval when hopping
  • the frequency domain interval represents a frequency domain granularity when the user performs SRS frequency domain hopping.
  • the frequency domain granularity is greater than or equal to a specific SRS bandwidth of the user.
  • FIG. 1 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment may be a smart terminal, for example, a smart phone or a tablet. a wearable smart device, etc.; referring to FIG. 1, the UE includes: a sending module 10;
  • the sending module 10 is configured to perform uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • the user equipment performs the uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter by the sending module, where
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; the reference signal frequency hopping of the UE
  • the interval information indicates a frequency domain granularity of a frequency hopping interval of the uplink reference signal in frequency domain hopping; and the frequency domain location parameter indicates a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE.
  • the frequency domain granularity is greater than or equal to a user-specific reference signal bandwidth used by the UE to transmit a reference signal. Since the reference signal hopping interval information of the UE is added as a parameter when determining that the UE transmits the transmission pattern of the uplink reference signal, when the uplink reference signal performs frequency hopping, it is further sampled, which is reduced. The number of measurements, thereby improving the efficiency of channel quality measurements.
  • FIG. 2 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • the UE further includes: a receiving module 11;
  • the receiving module 11 is configured to receive, before the sending module 10 performs the uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter. a configuration message sent by the base station, where the configuration message includes reference signal hopping interval information of the UE;
  • the configuration manner of the reference signal hopping interval information of the UE is a semi-static configuration of the high-level signaling.
  • the high layer signaling may be semi-static signaling of a Radio Resource Control (RRC) layer;
  • RRC Radio Resource Control
  • the configuration manner of the reference signal hopping interval information of the UE may also be a layer-by-layer signaling configuration manner.
  • the layer-by-layer signaling may be a physical layer (Physical Layer, PHY for short) layer, and a Medium Access Control (MAC) layer for dynamic signaling;
  • PHY Physical Layer
  • MAC Medium Access Control
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is obtained by the following formula:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • RRC is a frequency domain location parameter given by a higher layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity
  • the F b ' ( n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th node in a tree structure
  • the frequency hopping bandwidth is The frequency domain range of the uplink reference signal in the frequency domain frequency hopping.
  • the F b′ (n SRS ) is obtained by the following formula:
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • the b" is a level number of a node in a tree structure of a hopped hopping bandwidth; further, the n SRS can be obtained by the following formula:
  • n SRS is used to count the number of times when the user transmits according to the specific SRS bandwidth
  • T SRS is the SRS transmission period when the periodic SRS is transmitted.
  • T offset is the offset of the SRS transmission subframe, which is used to indicate the timing of the SRS transmission.
  • T offset_max is the maximum subframe offset under some sort of SRS transmission subframe offset configuration.
  • n s and n f are the system slot number and frame number, respectively.
  • the N SP is the number of downlink to uplink switching points in the radio frame.
  • the sending module 10 is specifically configured to send the uplink reference signal by sending a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each time slot.
  • FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station may be: a long-evolved base station, a relay device, a hotspot device, and the like.
  • the base station includes: a sending module 20, a receiving module 2121;
  • the sending module 20 is configured to notify the user equipment UE of the reference signal bandwidth configuration information, the reference signal hopping interval information of the UE, and the frequency domain location parameter to the user equipment;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • the receiving module 21 is configured to receive an uplink reference signal sent by the UE.
  • the base station provided by the embodiment of the present invention sends, by the sending module, the reference signal bandwidth configuration information of the user equipment UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter to the user equipment; wherein, the UE
  • the reference signal bandwidth configuration information indicates a user-specific reference signal bandwidth used by the UE to transmit an uplink reference signal;
  • the reference signal hopping interval information of the UE indicates a frequency of a frequency hopping interval of the uplink reference signal in frequency domain hopping.
  • the frequency domain location parameter indicates the frequency domain location of the uplink reference signal after the frequency hopping of the reference signal in the frequency domain; the frequency domain granularity is greater than or equal to the user specific used by the UE to send the reference signal.
  • the receiving module further receives an uplink reference signal sent by the UE. Since the reference signal hopping interval information of the UE is added as a parameter when determining that the UE transmits the transmission pattern of the uplink reference signal, when the uplink reference signal performs frequency hopping, it is further sampled, which is reduced. The number of measurements, thereby improving the efficiency of channel quality measurements.
  • the sending module 20 is specifically configured to send a configuration message to the UE, where the configuration message includes reference signal hopping interval information of the UE, and the sending manner of the configuration message is semi-static for high-level signaling. Configuration.
  • the sending manner of the configuration message may also be a layer-by-layer signaling manner.
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is obtained by the following formula:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • the RRC is a frequency domain location parameter given by the upper layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity of the frequency hopping
  • b' (n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th level node in a tree structure
  • the frequency bandwidth is a frequency domain range in the frequency domain frequency hopping of the uplink reference signal.
  • the F b′ (n SRS ) is obtained by the following formula:
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • n SRS can be obtained by the following formula:
  • n SRS is used to count the number of times when the user transmits according to the specific SRS bandwidth
  • T SRS is the SRS transmission period when the periodic SRS is transmitted.
  • T offset is the offset of the SRS transmission subframe, which is used to indicate the timing of the SRS transmission.
  • T offset_max is the maximum subframe offset under some sort of SRS transmission subframe offset configuration.
  • n s and n f are the system slot number and frame number, respectively.
  • the N SP is the number of downlink to uplink switching points in the radio frame.
  • the sending module 20 is configured to send, in each time slot, a channel quality indicator, a channel quality information (CQI) symbol, and/or a precoding matrix indicator (Precoding Matrix Indicator,
  • PMI Precoding Matrix Indicator
  • the embodiment of the present invention provides another feasible manner: for each of the uplink system bandwidths, user-specific maximum SRS bandwidth setting is performed. That is, different users per cell have different maximum measurable SRS bandwidth settings.
  • the extended cell-specific parameter C SRS is the maximum measurable reference signal bandwidth configuration information of the UE; or the maximum measurable reference signal bandwidth configuration information of the UE is further set under the cell-specific parameter C SRS .
  • the cell edge user may have a smaller maximum measurable reference signal bandwidth configuration information than the cell center user. Therefore, when the system bandwidth is large, the time of the uplink channel quality measurement can be greatly reduced.
  • the transmitting module 10 of the UE further has the following functions:
  • the sending module 10 is configured to perform uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal maximum hopping bandwidth configuration information of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates that the UE sends an uplink reference signal.
  • User-specific reference signal bandwidth used; the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates a maximum hopping bandwidth of an uplink reference signal that the UE can support; and the frequency domain location parameter indicates that the UE is in reference The frequency domain position of the uplink reference signal after frequency hopping in the frequency domain.
  • the UE provided by the embodiment of the present invention performs the uplink reference signal transmission of the UE by using the reference signal bandwidth configuration information of the UE, the reference frequency maximum hopping bandwidth configuration information of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference signal that the UE can support.
  • the maximum frequency hopping bandwidth; the frequency domain location parameter indicates a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE.
  • the reference signal maximum hopping bandwidth configuration information of the UE is set, thereby defining a maximum value of the reference signal bandwidth that the UE can use, so that for some specific UEs, for example, a UE such as a cell edge,
  • the smaller hopping bandwidth configuration information of the reference signal is allocated to reduce the time of the uplink channel quality measurement when the system bandwidth is large, thereby improving the efficiency of channel quality measurement.
  • the receiving module 11 of the UE has the following functions:
  • the receiving module 11 is configured to: before the sending module 10 performs the uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal maximum hopping bandwidth configuration information of the UE, and the frequency domain location parameter. Receiving a configuration message sent by the base station, where the configuration message includes configuration information of a maximum frequency hopping bandwidth of the reference signal of the UE;
  • the configuration manner of the maximum hopping bandwidth configuration information of the reference signal of the UE is a semi-static configuration of the high-level signaling.
  • the configuration manner of the reference signal hopping interval information of the UE may also be a layer-by-layer signaling configuration manner.
  • the configuration message further includes: cell-specific reference signal bandwidth configuration information;
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE;
  • FIG. 4 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • the UE further includes: a processing module 12;
  • the processing module 12 is configured to determine, according to the cell-specific reference signal bandwidth configuration information, the reference signal maximum frequency hopping bandwidth configuration information of the UE.
  • the sending module 10 is specifically configured to send a channel quality indicator CQI in each time slot.
  • the symbol and/or precoding matrix indicates that the uplink reference signal is transmitted on the symbol of the PMI.
  • each module of the base station has the following functions:
  • the sending module 20 the reference signal bandwidth configuration information of the UE, the reference signal maximum frequency hopping bandwidth configuration information of the UE, and the frequency domain location parameter are sent to the user equipment UE;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference that the user equipment can support. a maximum frequency hopping bandwidth of the signal; the frequency domain location parameter indicating a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE;
  • the receiving module 21 is configured to receive an uplink reference signal sent by the UE.
  • the base station provided by the embodiment of the present invention, the transmitting module notifying the reference signal bandwidth configuration information of the UE, the reference signal maximum hopping bandwidth configuration information of the UE, and the frequency domain location parameter to the user equipment UE;
  • the reference signal bandwidth configuration information of the UE indicates the user-specific reference signal bandwidth used by the UE to send the uplink reference signal;
  • the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates the maximum hop of the uplink reference signal that the user equipment can support.
  • the frequency domain position parameter indicates a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the frequency domain of the reference signal; and the receiving module receives the uplink reference signal sent by the UE.
  • the reference signal maximum hopping bandwidth configuration information of the UE is set, thereby defining a maximum value of the reference signal bandwidth that the UE can use, so that for some specific UEs, for example, a UE such as a cell edge,
  • the smaller hopping bandwidth configuration information of the reference signal is allocated to reduce the time of the uplink channel quality measurement when the system bandwidth is large, thereby improving the efficiency of channel quality measurement.
  • the sending module 20 is specifically configured to send a configuration message to the UE, where the configuration message includes configuration information of a maximum frequency hopping bandwidth of a reference signal of the UE, and the sending manner of the configuration message is a high layer signaling.
  • the sending manner of the configuration message may also be a layer-by-layer signaling manner.
  • the configuration message further includes: cell reference signal bandwidth configuration information;
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • Frequency bandwidth configuration information is a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • the sending module 20 is specifically configured to receive the uplink reference signal by using a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each time slot.
  • FIG. 5 is a schematic structural diagram of a general network device according to an embodiment of the present invention.
  • the universal network device includes: a transmitter 30, a processor 31, and a receiver 32.
  • Both the UE and the base station may adopt the structure of the universal network device shown in FIG. 5.
  • the transmitter 30 has the function of the sending module 10 above, and the receiver 32 has The function of the receiving module 11 above, the processor 31 has the function of the processing module 12 above, that is, the universal network device can implement the corresponding technical effect of the UE in the above embodiment;
  • the base station adopts the general network device structure, then the transmitting The device 30 has the function of the above transmitting module 20, and the receiver 32 has the function of the receiving module 21 above, that is, the universal network device can implement the corresponding technical effects of the base station in the above embodiment.
  • FIG. 6 is a schematic flowchart of a method for communicating an uplink reference signal according to an embodiment of the present invention.
  • the method is performed by a user equipment (User Equipment, UE for short).
  • the UE may be an intelligent terminal, for example, A smartphone, a tablet, a wearable smart device, etc.; referring to Figure 6, the method includes the following steps:
  • Step 101 The user equipment UE performs uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • the uplink reference signal communication method is provided by the UE, and the UE performs uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • Frequency domain granularity of the frequency hopping interval indicates a frequency domain location of the uplink reference signal after frequency hopping of the reference signal in the UE; the frequency domain granularity is greater than or equal to the UE sending The user-specific reference signal bandwidth used by the reference signal. Since the reference signal hopping interval information of the UE is added as a parameter when determining that the UE transmits the transmission pattern of the uplink reference signal, when the uplink reference signal performs frequency hopping, it is further sampled, which is reduced. The number of measurements, which improves the channel quality measurement The efficiency of quantity.
  • the UE may notify, by using a base station, the reference signal bandwidth configuration information of the UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter.
  • FIG. 7 is a schematic flowchart of another method for communicating an uplink reference signal according to an embodiment of the present invention. Before step 101, the method further includes:
  • Step 100 The UE receives a configuration message sent by a base station.
  • the configuration message includes the reference signal hopping interval information of the UE, and the configuration manner of the reference signal hopping interval information of the UE is a semi-static configuration of the high-level signaling.
  • the configuration manner of the reference signal hopping interval information of the UE may also be a layer-by-layer signaling configuration manner.
  • the reference signal hopping interval information of the UE is configured by the base station, and is sent to the UE.
  • the base station separately configures corresponding reference signal hopping interval information. Therefore, the frequency domain granularity of the frequency hopping interval of the uplink reference signal in the frequency domain hopping of each uplink signal may be different or the same.
  • the specific configuration is configured by the base station according to a specific environment, which is not limited herein.
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to send a reference signal.
  • the frequency domain granularity may be 1 time, 2 times, 3 times, 5 times the user-specific SRS bandwidth used by the UE to transmit the reference signal, etc., or the frequency domain granularity may also be a certain The product of the uplink system bandwidth and the number of nodes of several levels in the tree structure corresponding to the user-specific SRS bandwidth used by the UE to transmit the reference signal, as it may be N3 or N3x N2 or N3x N2x N1 times
  • the UE transmits the user-specific SRS bandwidth used by the reference signal.
  • the frequency domain location parameter is obtained by the following formula:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • RRC is a frequency domain location parameter given by a higher layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity
  • the F b ' ( n SRS ) is a frequency domain position offset value of the user
  • the n SRS is a counter at the time of frequency hopping
  • the N b′ is a number of nodes of the b′th node in the tree structure
  • the frequency hopping bandwidth is The frequency domain range in the frequency domain frequency hopping of the uplink reference signal.
  • the b" is a level number of a node in a tree structure of a hopped hopping bandwidth; further, the n SRS can be obtained by the following formula:
  • n SRS is used to count the number of times when the user transmits according to the specific SRS bandwidth
  • T SRS is the SRS transmission period when the periodic SRS is transmitted.
  • T offset is the offset of the SRS transmission subframe, which is used to indicate the timing of the SRS transmission.
  • T offset_max is the maximum subframe offset under some sort of SRS transmission subframe offset configuration.
  • n s and n f are the system slot number and frame number, respectively.
  • the N SP is the number of downlink to uplink switching points in the radio frame.
  • the UE sends the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each time slot.
  • FIG. 8 is a schematic flowchart of another method for communicating an uplink reference signal according to an embodiment of the present invention.
  • the method is performed by a base station.
  • the base station may be: a long-evolved base station and a relay device. , hotspot device, etc.; referring to Figure 8, the method includes the following steps:
  • Step 200 The base station notifies the reference signal bandwidth configuration information of the user equipment UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter to the user equipment;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a frequency domain hopping of the uplink reference signal.
  • Step 201 The base station receives an uplink reference signal sent by the UE.
  • the method for communicating the uplink reference signal provided by the embodiment of the present invention, the base station notifying the reference signal bandwidth configuration information of the user equipment UE, the reference signal hopping interval information of the UE, and the frequency domain location parameter to the user equipment;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal hopping interval information of the UE indicates a hop of the uplink reference signal in frequency domain hopping.
  • Frequency domain granularity of the frequency interval indicates a frequency domain location of the uplink reference signal after frequency hopping of the reference signal in the UE; the frequency domain granularity is greater than or equal to the reference signal sent by the UE User-specific reference signal bandwidth used; and receiving, by the base station, an uplink reference signal sent by the UE. Since the reference signal hopping interval information of the UE is added as a parameter when determining that the UE transmits the transmission pattern of the uplink reference signal, when the uplink reference signal performs frequency hopping, it is further sampled, which is reduced. The number of measurements, thereby improving the efficiency of channel quality measurements.
  • the base station notifies the reference signal hopping interval information of the user equipment UE, including:
  • the base station sends a configuration message to the UE, where the configuration message includes the reference signal hopping interval information of the UE, and the sending manner of the configuration message is a high-level signaling semi-static configuration.
  • the sending manner of the configuration message may also be a layer-by-layer signaling manner.
  • the frequency domain granularity is greater than or equal to a bandwidth used by the UE to send a reference signal, including:
  • the frequency domain granularity is an integer multiple of a bandwidth used by the UE to transmit a reference signal.
  • the frequency domain location parameter is obtained by the following formula:
  • n b ' is the frequency domain location parameter
  • the b hop is a tree structure index of the target frequency hopping bandwidth
  • the b′ is a tree structure index of the current traversed frequency hopping bandwidth
  • the RRC is a frequency domain location parameter given by the upper layer
  • the m SRS, b is a user-specific SRS bandwidth used by the UE to send an uplink reference signal
  • the D h is the frequency domain granularity of the frequency hopping
  • b' (n SRS ) is a frequency domain position offset value of the UE
  • the n SRS is a frequency hopping count value
  • the N b′ is a number of nodes of a b′th level node in a tree structure
  • the frequency bandwidth is a frequency domain range in the frequency domain frequency hopping of the uplink reference signal.
  • the b" is a node level number in a tree structure of the hopped frequency hopping bandwidth.
  • n SRS can be obtained by the following formula:
  • n SRS is used to count the number of times when the user transmits according to the specific SRS bandwidth
  • T SRS is the SRS transmission period when the periodic SRS is transmitted.
  • T offset is the offset of the SRS transmission subframe, which is used to indicate the timing of the SRS transmission.
  • T offset_max is the maximum subframe offset under some sort of SRS transmission subframe offset configuration.
  • n s and n f are the system slot number and frame number, respectively.
  • the N SP is the number of downlink to uplink switching points in the radio frame.
  • the base station sends the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each time slot.
  • FIG 9 is a schematic of a frequency domain position hopping and frequency hopping pattern according to an embodiment of the present invention, with reference to FIG 9, each user is transmitting SRS bandwidth 1Bsrs, and D h is its frequency hopping 3Bsrs.
  • the UE sends the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each time slot.
  • the uplink reference signal is SRS
  • the uplink system bandwidth is greater than 40
  • 60 is less than or equal to 60
  • the user-specific SRS bandwidth of the corresponding 8 cell-specific SRS bandwidth configurations is shown in Table 2 below:
  • C SRS is an index number configured for a cell-specific SRS bandwidth
  • B srs is a user-specific SRS bandwidth configuration index
  • the frequency hopping interval in the solution may be semi-statically notified to the user through the high layer signaling, that is, the frequency domain granularity of the user-specific hopping interval is configured by the high layer signaling, and the unit of the frequency domain granularity may be the foregoing m SRS. b .
  • the UE performs corresponding frequency domain hopping according to the frequency domain granularity.
  • embodiments of the present invention provide another feasible way: for each of the uplink system bandwidths, user-specific maximum SRS bandwidth settings are performed. That is, different users per cell have different maximum measurable SRS bandwidth settings.
  • the extended cell-specific parameter C SRS is the maximum measurable reference signal bandwidth configuration information of the UE; or the maximum measurable reference signal bandwidth configuration information of the UE is further set under the cell-specific parameter C SRS .
  • the cell edge user may have a smaller maximum measurable reference signal bandwidth configuration information than the cell center user. Therefore, when the system bandwidth is large, the time of the uplink channel quality measurement can be greatly reduced.
  • FIG. 10 is a schematic flowchart of another method for communicating an uplink reference signal according to an embodiment of the present invention.
  • the method is performed by a user equipment (User Equipment, UE for short).
  • the UE may be a smart terminal, for example, a smart phone, a tablet computer, a wearable smart device, etc.; referring to FIG. 10, the method includes the following steps:
  • Step 301 The user equipment UE performs uplink reference signal transmission of the UE according to the reference signal bandwidth configuration information of the UE, the maximum hopping bandwidth configuration information of the reference signal of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference signal that the UE can support.
  • the maximum frequency hopping bandwidth; the frequency domain location parameter indicates a frequency domain location of the uplink reference signal after the frequency hopping of the reference signal in the UE.
  • the communication method of the uplink reference signal provided by the embodiment of the present invention is performed by the user equipment UE according to the reference signal bandwidth configuration information of the UE, the maximum hopping bandwidth configuration information of the reference signal of the UE, and the frequency domain location parameter.
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal;
  • the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates that the UE may The maximum frequency hopping bandwidth of the supported uplink reference signal;
  • the frequency domain location parameter indicates a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE.
  • the reference signal maximum hopping bandwidth configuration information of the UE is set, thereby defining a maximum value of the reference signal bandwidth that the UE can use, so that for some specific UEs, for example, a UE such as a cell edge,
  • the smaller hopping bandwidth configuration information of the reference signal is allocated to reduce the time of the uplink channel quality measurement when the system bandwidth is large, thereby improving the efficiency of channel quality measurement.
  • FIG. 11 is a schematic flowchart of another method for communicating an uplink reference signal according to an embodiment of the present invention. Referring to FIG. 11, before step 301, the method further includes:
  • Step 300 The UE receives a configuration message sent by a base station, where the configuration message includes configuration information of a maximum frequency hopping bandwidth of a reference signal of the UE.
  • the configuration manner of the maximum hopping bandwidth configuration information of the reference signal of the UE is a semi-static configuration of the high-level signaling.
  • the configuration manner of the reference signal hopping interval information of the UE may also be a layer-by-layer signaling configuration manner.
  • the maximum hopping bandwidth configuration information of the reference signal of the UE is configured by the base station, and is sent to the UE.
  • the base station configures corresponding hopping bandwidth maximum hopping bandwidth configuration information. Therefore, the maximum hopping bandwidth configuration information of the reference signal of each UE may be different or the same.
  • the specific configuration is configured by the base station according to a specific environment, which is not limited herein.
  • it also includes:
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE;
  • the UE sends the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each time slot.
  • FIG. 12 is a schematic flowchart of another method for communicating an uplink reference signal according to an embodiment of the present invention.
  • the method is performed by a base station.
  • the base station may be: a long-evolved base station and a relay device. , hotspot device, etc.; referring to Figure 12, the method includes the following steps:
  • Step 400 The base station notifies the reference signal bandwidth configuration information of the UE, the reference signal maximum frequency hopping bandwidth configuration information of the UE, and the frequency domain location parameter to the user equipment UE;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference that the user equipment can support. a maximum frequency hopping bandwidth of the signal; the frequency domain location parameter indicating a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE;
  • Step 401 The base station receives an uplink reference signal sent by the UE.
  • the method for communicating the uplink reference signal provided by the embodiment of the present invention, the base station notifying the reference signal bandwidth configuration information of the UE, the reference signal maximum frequency hopping bandwidth configuration information of the UE, and the frequency domain location parameter to the user equipment UE;
  • the reference signal bandwidth configuration information of the UE indicates a user-specific reference signal bandwidth used by the UE to send an uplink reference signal; and the reference signal maximum frequency hopping bandwidth configuration information of the UE indicates an uplink reference that the user equipment can support.
  • a maximum frequency hopping bandwidth of the signal indicates a frequency domain position of the uplink reference signal after the frequency hopping of the reference signal in the UE; and receiving, by the base station, an uplink reference signal sent by the UE .
  • the reference signal maximum hopping bandwidth configuration information of the UE is set, thereby defining a maximum value of the reference signal bandwidth that the UE can use, so that for some specific UEs, for example, a UE such as a cell edge,
  • the smaller hopping bandwidth configuration information of the reference signal is allocated to reduce the time of the uplink channel quality measurement when the system bandwidth is large, thereby improving the efficiency of channel quality measurement.
  • the base station notifies the user equipment UE of the reference signal maximum frequency hopping bandwidth configuration information, including:
  • the base station sends a configuration message to the UE, where the configuration message includes the maximum hopping bandwidth configuration information of the reference signal of the UE, and the sending mode of the configuration message is a semi-static configuration of the high layer signaling.
  • the sending manner of the configuration message may also be a layer-by-layer signaling manner.
  • the configuration message further includes: cell reference signal bandwidth configuration information;
  • the cell-specific reference signal bandwidth configuration information has a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • Frequency bandwidth configuration information is a corresponding relationship with the reference signal maximum frequency hopping bandwidth configuration information of the UE, so that the UE determines the maximum hop of the reference signal of the UE according to the cell-specific reference signal bandwidth configuration information.
  • the base station sends the uplink reference signal on a symbol of a channel quality indicator CQI and/or a symbol of a precoding matrix indicating PMI in each time slot.
  • the user-specific maximum SRS bandwidth setting U SRS may be set under each uplink system bandwidth, and the above system bandwidth is greater than 40 and less than or equal to 60, and the corresponding eight user-specific maximums are used.
  • the SRS bandwidth configuration and the user-specific SRS bandwidth and N b values in the corresponding configuration are shown in the following table:
  • Cell-specific SRS bandwidth configurations under other uplink system bandwidths can be similarly extended to user-specific maximum SRS bandwidth configurations.
  • the configuration U SRS further having the user's maximum SRS bandwidth under the specific SRS bandwidth configuration of each cell, and the above system bandwidth is greater than 40 or less than 60, for example, the user in the corresponding cell-specific SRS bandwidth configuration.
  • the maximum SRS bandwidth configuration and the user-specific SRS bandwidth values in the corresponding configuration are shown in the following table:
  • the user-specific maximum SRS bandwidth setting may also be high layer signaling notification and configuration to the user.
  • the SRS transmission scheme in the foregoing embodiment is an enhancement of SRS transmission in the frequency domain.
  • channel quality measurement using the uplink and downlink channel reciprocity will be the mainstream and a mandatory solution.
  • the accuracy of SRS for channel quality measurement needs to be further enhanced.
  • SRS transmission enhancement can be further performed in the time domain, such as at the time of transmitting symbols of each time slot for transmitting PMI/CQI. It is used to transmit SRS and select different antenna transmissions on multiple symbols transmitting SRS, so as to provide more accurate spatial channel information when utilizing TDD reciprocity.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un dispositif et un procédé de communication de signaux de référence de liaison montante. Le procédé consiste : à transmettre, par un équipement d'utilisateur (UE), un signal de référence de liaison montante de l'UE selon les informations de configuration de la bande passante du signal de référence destiné à l'UE, les informations d'intervalle de saut de fréquence du signal de référence destinée à l'UE et un paramètre de localisation du domaine de fréquence. Étant donné que les informations d'intervalle de saut de fréquence du signal de référence pour l'UE sont ajoutées en tant que paramètre, un échantillonnage supplémentaire est effectué lorsque le signal de référence de liaison montante subit des sauts de fréquence et le nombre de mesures est réduit, améliorant ainsi l'efficacité de la mesure de la qualité de canal.
PCT/CN2015/073216 2015-02-17 2015-02-17 Dispositif et procédé de communication de signaux de référence de liaison montante WO2016131186A1 (fr)

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CN201810723426.8A CN109039560B (zh) 2015-02-17 2015-02-17 一种上行参考信号的通信装置及方法
PCT/CN2015/073216 WO2016131186A1 (fr) 2015-02-17 2015-02-17 Dispositif et procédé de communication de signaux de référence de liaison montante
CN201580002497.3A CN106105288B (zh) 2015-02-17 2015-02-17 一种上行参考信号的通信装置及方法
EP15882326.0A EP3249961B1 (fr) 2015-02-17 2015-02-17 Dispositif et procédé de communication de signaux de référence de liaison montante
US15/679,951 US10700844B2 (en) 2015-02-17 2017-08-17 Communications apparatus and uplink reference signal communication method

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CN109039560B (zh) 2019-11-19
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US10700844B2 (en) 2020-06-30
CN106105288B (zh) 2020-01-17

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